Description
Cilostamide (68550-75-4) is a selective inhibitor of phosphodiesterase-3 (PDE3). Displays limited selectivity for PDE3A versus PDE3B (IC50 = 27 and 50 nM).1,2 Blocks PKB/Akt signaling pathway downstream via inhibition of Akt-activated PDE3B.3 Cilostamide reverses the effect of leptin on food intake and body weight.4
Uses
Serotonin receptor ligand
Uses
Cilostamide (OPC 3689) is a specific phosphodiesterase 3 (PDE3) inhibitor.
Definition
ChEBI: N-cyclohexyl-N-methyl-4-[(2-oxo-1H-quinolin-6-yl)oxy]butanamide is a member of quinolines.
Biological Activity
Selective inhibitor of type III phosphodiesterase (PDE3). Displays moderate selectivity for PDE3A isozyme vs. PDE3B (IC 50 values are 0.027 and 0.050 μ M for PDE3A and PDE3B respectively). Inhibits ADP-induced platelet aggregation (IC 50 = 16.8 μ M); anti-thrombotic. Also available as part of the Phosphodiesterase Inhibitor Tocriset™ .
Biochem/physiol Actions
Selective inhibitor of PDE3 (cGMP-inhibited phosphodiesterase); IC50 = 70 ± 9 nM. This inhibitory effect increases intracellular cAMP and inhibits platelet aggregation.
References
1) Hidaka et al. (1979), Selective inhibitor of platelet cyclic adenosine monophosphate phosphodiesterase, cilostamide, inhibits platelet aggregation; J. Pharmacol. Exp. Ther., 211 26
2) Christensen and Torphy et al. (1994), Isozyme-Selective Phosphodiesterase Inhibitors as Antiasthmatic Agents; Annu. Rep. Med. Chem., 29 185
3) Ahmad et al. (2000), Cyclic nucleotide phosphodiesterase 3B is a downstream target of protein kinase B and may be involved in regulation of effects of protein kinase B on thymidine incorporation in FDCP2 cells; J. Immunol., 164 4678
4) Zhao et al. (2002), A phosphatidylinositol 3-kinase phosphodiesterase 3B-cyclic AMP pathway in hypothalamic action of leptin on feeding; Nat. Neuroscience, 5 727
